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INA250A2QPWRQ1
Public Made by Adomby adom
Texas Instruments Current-Sensing Amplifiers, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownINA250A2QPWRQ1
Texas Instruments · Current-Sensing Amplifiers · TSSOP-16
INA250A2QPWRQ1 from Texas Instruments, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | IN- | passive | Analog input on the load side of the internal shunt; connect to load, carries up to ±15 A continuous with pins 2 and 3. |
| 2 | IN- | passive | Analog input on the load side of the internal shunt; connect to load, carries up to ±15 A continuous with pins 1 and 3. |
| 3 | IN- | passive | Analog input on the load side of the internal shunt; connect to load, carries up to ±15 A continuous with pins 1 and 2. |
| 4 | SH- | passive | Kelvin connection to the internal shunt; connect to VIN- if no filtering is needed. |
| 5 | VIN- | power_in | Analog voltage input from the load side of the shunt resistor. |
| 6 | GND | power_in | Analog ground. |
| 7 | REF | input | Reference voltage analog input, 0 V to VS (up to 18 V). |
| 8 | GND | power_in | Analog ground. |
| 9 | OUT | output | Analog output voltage, limited to GND - 0.3 V to (VS + 0.3 V) up to 18 V. |
| 10 | VS | power_in | Device power supply, 2.7 V to 36 V. |
| 11 | GND | power_in | Analog ground. |
| 12 | VIN+ | power_in | Analog voltage input from the supply side of the shunt resistor. |
| 13 | SH+ | passive | Kelvin connection to the internal shunt; connect to VIN+ if no filtering is needed. |
| 14 | IN+ | passive | Analog input on the supply side of the internal shunt; connect to supply, carries up to ±15 A continuous with pins 15 and 16. |
| 15 | IN+ | passive | Analog input on the supply side of the internal shunt; connect to supply, carries up to ±15 A continuous with pins 14 and 16. |
| 16 | IN+ | passive | Analog input on the supply side of the internal shunt; connect to supply, carries up to ±15 A continuous with pins 14 and 15. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Operational Amplifier/Comparator |
| Pins | 16 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Common-mode rejection | CMR | 97 | 110 | dB | INA250A2-Q1, VIN+ = 0 V to 36 V, TA = -40°C to 125°C | 6 | |
| Common-mode input range | VCM | -0.1 | 36 | V | 6 | ||
| Offset current, RTI | IOS | -50 | 12.5 | 50 | mA | INA250A2-Q1, ISENSE = 0 A; typ printed ±12.5, max ±50 | 6 |
| Offset current vs temperature | dIOS/dT | 25 | 250 | μA/°C | TA = -40°C to 125°C | 6 | |
| Power-supply rejection | PSR | -1 | 0.03 | 1 | mA/V | VS = 2.7 V to 36 V, TA = -40°C to 125°C; typ printed ±0.03 | 6 |
| Input bias current | IB | -40 | 28 | 40 | μA | IB+, IB-, ISENSE = 0 A; typ printed ±28 | 6 |
| Shunt resistance (with onboard amplifier) | RSHUNT | 1.998 | 2 | 2.002 | mΩ | Equivalent resistance when used with onboard amplifier, SH+ to SH- | 6 |
| Shunt resistance (stand-alone) | RSHUNT | 1.9 | 2 | 2.1 | mΩ | Used as stand-alone resistor, SH+ to SH- | 6 |
| Maximum continuous current | ISENSE | -15 | 15 | A | TA = -40°C to 85°C | 6 | |
| Shunt short time overload | -0.05 | 0.05 | % | ISENSE = 30 A for 5 seconds | 6 | ||
| Shunt thermal shock | -0.1 | 0.1 | % | -65°C to 150°C, 500 cycles | 6 | ||
| Shunt resistance to solder heat | -0.1 | 0.1 | % | 260°C solder, 10 s | 6 | ||
| Shunt high temperature exposure | -0.15 | 0.15 | % | 1000 hours, TA = 150°C | 6 | ||
| Shunt cold temperature storage | -0.025 | 0.025 | % | 24 hours, TA = -65°C | 6 | ||
| System gain error | -0.3 | 0.05 | 0.3 | % | ISENSE = -10 A to 10 A, TA = 25°C; typ printed ±0.05% | 7 | |
| System gain error over temperature | -0.75 | 0.75 | % | ISENSE = -10 A to 10 A, TA = -40°C to 125°C | 7 | ||
| Swing to GND | 25 | 50 | mV | RL = 10 kΩ to GND; printed (VGND) + 25 typ, (VGND) + 50 max | 7 | ||
| Operating voltage range | VS | 2.7 | 36 | V | 7 | ||
| Quiescent current | IQ | 200 | 300 | μA | TA = -40°C to 125°C | 7 | |
| Specified temperature range | -40 | 125 | °C | 7 | |||
| Supply voltage | VS | 40 | V | 4 | |||
| Analog input current, continuous | -15 | 15 | A | Continuous current | 4 | ||
| Analog inputs IN+, IN- common-mode | -0.3 | 40 | V | Common-mode, min printed GND, 0.3 | 4 | ||
| Analog inputs VIN+, VIN- common-mode | -0.3 | 40 | V | Common-mode, min printed GND, 0.3 | 4 | ||
| Analog inputs VIN+, VIN- differential | -40 | 40 | V | Differential (VIN+), (VIN-) | 4 | ||
| Analog output SH+, SH- common-mode | -0.3 | 40 | V | Common-mode, min printed GND, 0.3 | 4 | ||
| Operating temperature | TA | -55 | 150 | °C | 4 | ||
| Junction temperature | TJ | 150 | °C | 4 | |||
| Storage temperature | Tstg | -65 | 150 | °C | 4 | ||
| ESD HBM | V(ESD) | -2000 | 2000 | V | Human-body model, per AEC Q100-002 | 4 | |
| ESD CDM | V(ESD) | -1000 | 1000 | V | Charged-device model, per AEC Q100-011 | 4 | |
| Common-mode input voltage | VCM | 0 | 36 | V | 4 | ||
| Operating supply voltage | VS | 2.7 | 36 | V | 4 | ||
| Operating free-air temperature | TA | -40 | 125 | °C | 4 | ||
| Junction-to-ambient thermal resistance | RθJA | 104.4 | °C/W | PW (TSSOP) 16 pins | 5 | ||
| Junction-to-case (top) thermal resistance | RθJC(top) | 42.3 | °C/W | PW (TSSOP) 16 pins | 5 | ||
| Junction-to-board thermal resistance | RθJB | 48.5 | °C/W | PW (TSSOP) 16 pins | 5 | ||
| Junction-to-top characterization parameter | ψJT | 4.5 | °C/W | PW (TSSOP) 16 pins | 5 | ||
| Junction-to-board characterization parameter | ψJB | 48 | °C/W | PW (TSSOP) 16 pins | 5 | ||
| Package resistance | 4.5 | mΩ | IN+ to IN- | 6 | |||
| Resistor temperature coefficient | 15 | ppm/°C | TA = -40°C to 125°C | 6 | |||
| Resistor temperature coefficient | 50 | ppm/°C | TA = -40°C to 0°C | 6 | |||
| Resistor temperature coefficient | 10 | ppm/°C | TA = 0°C to 125°C | 6 | |||
| Gain | G | 500 | mV/A | INA250A2-Q1 | 7 | ||
| System gain error drift | 45 | ppm/°C | TA = -40°C to 125°C | 7 | |||
| Nonlinearity error | 0.03 | % | ISENSE = 0.5 A to 10 A; printed ±0.03% | 7 | |||
| Output impedance | RO | 1.5 | Ω | 7 | |||
| Maximum capacitive load | 1 | nF | No sustained oscillation | 7 | |||
| Bandwidth | BW | 50 | kHz | INA250A2-Q1, CL = 10 pF | 7 | ||
| Slew rate | SR | 0.2 | V/μs | CL = 10 pF | 7 | ||
| Voltage noise density | 35 | nV/√Hz | INA250A2-Q1 | 7 |
CAD (KiCad official)
- Symbol:
INA250A2QPWRQ1 - Footprint:
Package_SO:TSSOP-16_4.4x5mm_P0.65mm - 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files:
ina250a2qpwrq1-etched.step/ina250a2qpwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina250a2qpwrq1.step/ina250a2qpwrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
a58cbd4f9b22c424, retrieved 2026-10-31, tier: manufacturer) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).